Quote Originally Posted by NordicCnc View Post
Impactirl offered 20x200x1000mm for 160€ for shipping to Finland. I guess that is a good price given that they cut it to length as well!
It's about right for a 5 series plate.

Quote Originally Posted by NordicCnc View Post
Yeah my gantry will be about 1100mm with approx 900mm working area. I am designing the z-axis so that I can use something like a JGL-100 2.5kW ATC spindle if I want. That spindle alone is almost 8kg. I estimate the Z-axis to be around 40kg in total with the ATC spindle, which is not too bad. Ill just skip the plate and shim the profile if needed.
You won't have any issues with profile that size at this short length. I've built several machines around that width and wider using 120 x 80 and it is more than strong enough.

On my larger machines I use 160 x 80 profile with much wider gantries and in fact, I'm currently building a 10 x 5 with gantry over 2mtr wide with 4.5Kw ATC spindle that is around 15Kg which it doesn't even know is attached.

By adding plates and using oversized Profile all your doing is adding weight which is making motors etc work harder and costing more money and performance. Overbuilding isn't always a good thing and can be negative to machine performance, esp for routers using steppers that work at high feeds where torque is lower.